Those sellers who need the money (bought another boat, whatever), might be motivated to negotiate an immediate sale after layup, rather than “hold” for spring.
Many sellers start to get nervous about a month or two after the “for sale” sign goes up.

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Gord May "If you didn't have the time or money to do it right in the first place, when will you get the time/$ to fix it?"

Popeye,
there is no real drop in boat prices over the winter on the bay; many boats are sailed all year, and are left in the water all year. However currently it is a buyers market, and you should get a good deal, having said that, many boats are overpriced and still selling, so who knows? IMHO you decide whats a good deal for you and walk away from the rest. There are always boats for sale.